Corrupting Ooze — fantasy monster illustration. Corrupting Ooze is a large ooze (Challenge Rating 5).

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Corrupting Ooze

Large Ooze, neutral evil

AC
12
HP
115
Speed
20
CR
5

A corrupting ooze boils and bubbles with rank marsh gas and the fetid stench of the sewer, and it leaves a stinking trail of acidic slime wherever it goes.
Swim and Walk. A corrupting ooze is a festering slime that can slither and even swim like a gigantic sea slug, or it can assume a roughly humanoid form and shamble through the streets, though its stench and its lack of speech make it unlikely that anyone might mistake it for a normal person. They are frequently soldiers and servants to heralds of blood and darkness.
Dissolve Bones. A corrupting ooze can absorb an entire large animal or small person, simply dissolving everything including the bones in a matter of minutes. This function makes them an important element of certain dark rituals.


Armor Class 12 (natural armor)

Hit Points 115 (10d10+60)

Speed 20 ft., swim 30 ft.


STR
16 (+3)
DEX
10 (+0)
CON
22 (+6)
INT
4 (-3)
WIS
2 (-4)
CHA
1 (-5)

Skills Stealth +3

Damage Resistances slashing, bludgeoning

Damage Immunities acid, fire, poison

Condition Immunities exhaustion, frightened, paralyzed, petrified, poisoned

Senses blindsight 60 ft., tremorsense 60 ft., passive Perception 5

Languages -

Challenge 5


Traits

Corrupting Touch. When a corrupting ooze scores a critical hit or starts its turn with a foe grappled, it can dissolve one leather, metal, or wood item of its choosing in the possession of the target creature. A mundane item is destroyed automatically; a magical item is destroyed if its owner fails to make a successful DC 16 Dexterity saving throw.

Strong Swimmer. A corrupting ooze naturally floats on the surface of water. It swims with a pulsating motion that propels it faster than walking speed.

Actions

Slam. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) bludgeoning damage plus 3 (1d6) acid damage, and the target is grappled (escape DC 13).

Community Images

Corrupting Ooze — fantasy monster illustrationPrimary
FTTHelper · auto-generated · monster · monster

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Further reading

Jetpack7 Game Master Series
The Game Master's Book of Random Encounters
Jeff Ashworth · 2020
The Game Master's Book of Traps, Puzzles and Dungeons
Jeff Ashworth · 2022
The Game Master's Book of Legendary Dragons
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